baber/WOPTO huggingface dataset:
Patent GB-1302001-A (GB)
IPC: D04H1/00
Filed: 1971-01-22
Abstract: 1302001 Nonwoven material; treating fibres TSENTRALNOE PROEKTNO-KONSTRUKTORSKOE I TEKHNO - LOGICHESKOE BJURO MINISTERSTVA LEGKOI PROMYSHLENNOSTI LATVIISKOI SSR 22 Jan 1971 3020/71 Headings D1F and D1R A method of producing a nonwoven material from the wastes of leatherworking, fur dressing, textiles and cellulose industries comprises oiling the waste with an oiling agent, fibrillating the waste in air medium, dividing the resulting fibres into fine and coarse fractions by air floatation, mixing the fine fraction with base fibres, oiling the mixed fibres with the oiling agent, carding and lapping the oiled mixed fibres, and needle-punching the lap. The base fibres, e.g. flax or matted viscose fibre, may comprise 30 to 40% of the fibre mixture. The oiling agent may be an emulsion of a neutralised tall oil applied in an amount of 1-2% of the fibre weight. The needled lap may be strengthened by impregnating it with a binder, e.g. a latex stabilised by a neutralised tall oil. The fine fibre fraction may be obtained from the top of air floatation columns, the coarse fraction being re-cycled between the columns and fibre breakers.
Patent GB-1304106-A (GB)
IPC: B04B1/00
Filed: 1970-10-14
Abstract: 1304106 Centrifugal separators DZERZHINSKY FILIAL NAUCHNO-ISSLEDOVATELSKOGO I KONSTRUKTORSKOGO INSTITUTA KHMICHESKOGO MASHINOSTROENIA 14 Oct 1970 48904/70 Headings B1D and B2P An apparatus for separating solid and colloid particles from a liquid comprises a chamber 4 secured on a rotatably driven hollow shaft 1 and adapted to accumulate precipitate forming a filtering layer, openings 7, 10 being provided in the chamber and shaft respectively for the supply of the liquid to be treated to the chamber periphery and for the removal of purified liquid from the chamber portion adjacent the axis of rotation, the chamber tapering radially outwardly and being provided with one or more branch pipes 13 for removing excess precipitate located in the chamber between the openings 7 and 10. The shaft 1 is driven by means of a motor via belt 3 and pulley 2. The liquid to be treated is supplied through the shaft and, via openings 9 thereon to the openings 7, the liquid in operation filtering inwardly through the accumulated precipitate. The cross-section of the openings 7 is such that the liquid supplied to the chamber moves inwardly at a rate precluding the possibility of precipitate compression in the zone of liquid supply. The branch pipes 13 open into a further chamber 12 mounted on the shaft I where the excess precipitate is transferred and concentrated. Purified liquid is removed from chamber 12 through openings 14 in the hollow shaft 1, the size of the openings being adjustable by a sleeve 15 displaceable along the shaft 1 by means of a worm gear 16. A partition 17 mounted in the chamber 12 has openings 18 through which the concentrated precipitate is removed to be discharged through a valved conduit 19.
Patent GB-1304742-A (GB)
IPC: H03K3/57
Filed: 1970-05-26
Abstract: 1304742 D.C.-D.C. converters ENCON ELECTRONICS Ltd and M C JACKSON 25 May 1971 [26 May 1970] 25172/70 Heading H2F [Also in Division H3] A pulse generating circuit comprises a first switch 31, e.g. a PUT, having two inputs 54, 56 coupled in a balanced arrangement to a D.C. source i.e. via impedances 32-35 and 29, 30, so that conduction of the switch 31 is achieved periodically in which state a signal is applied to the control electrode of a second switch 46, e.g. an SCR, for the production of output pulses and an arrangement e.g. a ganged control switch 36, 37 for adjusting the pulse rate independently of the pulse amplitude and an arrangement e.g. variable resistor 21, for adjusting the pulse amplitude independently of the pulse rate. The time constant of a charging network 32-35 determines the conduction of PUT 31 and hence the rate of the timing pulses produced, which pulses trigger a controlled rectifier 46 so that a charge stored in capacitors 39-41 is discharged via a primary winding 49, with the consequent production of high tension pulses across the secondary 50. The charging circuit for the capacitors 39-41 includes a converter formed of a ringing choke oscillator circuit comprising a transistor 26 which is turned full on when a switch 15 is closed so that the current through a primary winding 24 increases linearly until a maximum limit determined by a resistor 21 is reached when transistor 26 is turned off and a reverse voltage is developed across the secondaries 20, 28 as the magnetic field in the transformer collapses. This reverse voltage is applied via a diode 38 to charge capacitors 39-41 with the above operations being repeated periodically. A pulse lengthening circuit 42, 43, 45 enables an indicating neon tube 48 to be operating even after the discharge of capacitors 39-41 is completed.
Patent GB-1306082-A (GB)
IPC: F02F3/22
Filed: 1969-04-30
Abstract: 1306082 Pistons RICARDO & CO ENGS (1927) Ltd 20 April 1970 [30 April 1969] 22079/69 Heading F2T  In an internal combustion engine piston assembly comprising a piston crown 15, Fig. 1, 15A, Fig. 4, and a ring belt 16, 16A rigidly secured to a piston body 10 or the head 10A of a piston-rod, thrust-transmitting struts 25, 25A are interposed between the crown and the body or head or an intermediate member 18, 18A secured to the body or head, the upper ends of the struts being joined to the crown and their lower ends abutting against the body or head or intermediate member. In the embodiment shown in Figs. 1 and 2 in which the piston body is connected by a gudgeon pin 12 to a connecting-rod 13, the struts 25 are integral with the crown 15 and the intermediate member 18 is secured to the crown 15 by bolts 32 engaging bosses 30 and comprises a base 35 having upstanding ribs 36 which abut the struts 25 and transmit the crown loading to the body 10. In the modification shown in Fig. 4, the crown 40A is formed from steel plate and welded to a ring belt member 16A, the struts 25A being welded to the crown. The intermediate member 18A is secured to the crown by bolts 42A and to the piston-rod head 10A by means not shown. Cooling oil is supplied through passages 43A and oil baffles 44A are secured to the member 18A.
Patent GB-1306640-A (GB)
Title: Whole bale hay rack
IPC: A01K1/10
Filed: 1971-09-15
Abstract: 1306640 Feed racks D BEVAN 12 Nov 1971 [15 Sept 1971] 42890/71 Heading AIM A hay rack comprises metal mesh sides 9 slidable horizontally between a sheet metal floor 7 and top 4 so that as animals consume the feed, which is accessible through the mesh, they push the sides inwardly. The ends 19 of the rack are of mesh and vertically slidable to permit loading of the rack. The rack is divided into two by a partition 8, each half of the rack having its own independently mounted sides and accepting a bale of hay. The rack is provided with detachable legs having sections 12 adjustable horizontally in frame parts 14 and sections 13 adjustable vertically in sections 12. When the legs are removed the rack can slide on metal skis 10.
Patent GB-1308378-A (GB)
Title: Testing apparatus
IPC: G01N3/30
Filed: 1970-07-18
Abstract: 1308378 Wear testing DEFENCE SECRETARY OF STATE FOR 18 July 1970 34949/70 Heading G1S A wear testing apparatus comprises two test piece mounting means 64, 81, means 32 for vibrating mounting means 64, mounting means 64 being weaker in bending than mounting means 81 by virtue of a necked portion 66, and a furnace 126 for heating test pieces 74, 92, each of the mounting means 64, 81 having a length 68 and 86 respectively of reduced cross section to reduce heat flow from the furnace. The test pieces 74, 92 are composed of the material to be tested or have a coating thereof on their contact faces which are parallel and inclined at 45 degrees to the axis of the test pieces Fig. 3, (not shown). A metal oxide coating may be tested. Mounting means 64 is located laterally by leaf springs 42 and 52 and the resonance frequency of the mounting may be adjusted by moving the spring mounting clamps 62. Cooling liquid may be passed through channel 80 in mounting means 64. In use, the gap between the test pieces is brought first to zero by rotation of threaded wheel 104 engaging threaded spindle 102 attached to mounting means 81, and then brought to the required value as indicated by dial gauge 122. The vibrator 22 is energised and in each cycle the test pieces first contact each other by impact then slide over each other. The test is continued for a predetermined time and a time switch may be provided to switch off the vibrator. Contact between the two test pieces when setting the gap between them may be indicated electrically or by feel. The amount of wear is determined by weighing the test pieces.
Patent GB-1308850-A (GB)
Title: Rail-mounted earthing or neutral conductor terminal
IPC: H01R9/26
Filed: 1971-10-13
Abstract: 1308850 Electric couplings HEGO ELECTRIC GmbH 13 Oct 1971 47692/71 Heading H2E An earthing or neutral terminal for mounting on a support rail comprises a conducting part with a clamp element screwed thereto for clamping the part to the rail, the part being I-shaped with the flanges of one end of the I adapted to be supported by the rail and the flanges at the other end having connectors for external conductors. The rail 10 is gripped between flanges 5, 6 at one end of the conducting part 2 and the clamping element 4 by means of the screw 3, while the flanges 16 at the other end each have stepped ends (17) on which sleeves 18 with screws 19 are disposed for receiving conductors 20. The rail-engaging surfaces of the part 2 and element 4 are provided with grooves (12) to enhance gripping and a pin (13) on the element 4 is guided in a recess (14) in the part 2 to prevent turning. The terminal includes a two-part insulating cover 22.
Patent GB-1311140-A (GB)
Title: Minute particle or -true atom- beam microscope intended primarily  for high mangnification of living cells or biological structures  particularly for cancer research
IPC: G02B27/00
Filed: 1970-11-16
Abstract: 1311140 Microscopy A P PEDRICK 16 Nov 1970 54388/70 Heading G2J The specification puts forward a theory of light according to which photons consist of pairs of ultimate particles (so-called "true atoms") which move in helical paths about a common axis in the direction of propagation. A consequence of the theory is that light may be so influenced by a magnetic field as to make it possible to produce an optical microscope controlled by magnets. The claim is directed to such a microscope and Fig.7 shows an embodiment thereof. In Fig.7 coherent light from a laser source 1 passes through the field set up by a solenoid 3 and thence through a minute aperture in a plate 4. The emergent beam traverses a zone bounded by an array of permanent magnets 11 and eventually impinges on deflecting mirrors 17, 19. These are movable in such a manner as to cause a beam to 'scan' a specimen at 22 and a divergent beam 21 strikes a screen 24 which may be observed at 25. It is asserted that the observer will perceive a greatly magnified image.
Patent GB-1319730-A (GB)
Title: Electric heating elements
IPC: H01B1/16
Filed: 1971-12-30
Abstract: 1319730 Resistance heating elements KLIMA-TECHNIK ANSTALT 30 Dec 1971 60873/71 Heading H5H A high temperature (600‹ C.) resistance mass for a flat electric heating element comprises a conductive pigment and a binder, the binder containing at least one organometallic compound which decomposes, at least partially, by oxidation on baking at 400‹ C. to leave a predominantly inorganic residue to bind the pigment to a substrate. The binder may comprise organic titanium acid esters, e.g. polymericn-butyl-titanate or in addition a mixture of esters constituting less than 10% by weight of the polymeric-n-butyl-titanate. The binder may constitute 20-80% by weight of temp. resistant silicone resins and 20-100% by weight (based on polymeric-n-b-t) of ethylene glycol to stabilize the mass. Additives for increasing strength and electrical properties may be polyimides organic substitution products of siloxane, e.g. poly-m-carborane-siloxanes, silicones, and silicones with metal additives. Resistance to heat and corrosion may be increased by adding soot, graphite, aluminium powder and/or heating wire alloys. The conductive pigment may comprise a metal powder (aluminium, zinc, copper, heating wire alloy) and/or graphite powder and soot. The resistive mass may be used in elements for tunnel furnaces, baking ovens and cooker plates. In test examples described, the resistance lacquer was applied to thermally devitrified glass fibre fabric strips, the strips baked and silver contents applied to opposite sides of the strip.
Patent GB-1320562-A (GB)
Title: Hinge joints
IPC: E05D11/00
Filed: 1970-02-10
Abstract: 1320562 Hinges and pivots HERBERT TERRY & SONS Ltd 19 April 1971 [10 Feb 1970] 6232/70 Heading E2F A hinge comprises a cylindrical sleeve 10 formed with a slot 12, a tube 16 extending radially of the hinge axis through the slot 12, and a spring 20 concentric with the hinge axis and stressed in a direction parallel to the hinge axis by a screw 22. The spring disc 20 is made fast with a screw-tapped post 18 formed on tube 16 by screw 22, and the edges of the spring 20 are biassed into contact with rebates 14 on the sleeve to provide a frictional resistance to the hingeing movement of the tube 16. In the embodiment shown, two spring discs 20 are provided, one for each side of the sleeve 10.
Patent GB-1324777-A (GB)
Title: Dynamo electric machines
IPC: H02K9/18
Filed: 1971-04-19
Abstract: 1324777 Cooling dynamo-electric machines ENGLISH ELECTRIC CO Ltd 19 April 1971 [6 Feb 1970] 5867/70 Heading H2A In a dynamo-electric machine cooling arrangement, hot gas is exhausted from both the stator core 20, Fig. 1B and rotor 60 into the stator/ rotor gap 79 and flows in both directions along the gap to hot gas collection chambers 29, Fig. 1B and 29A, Fig. 1A (not shown), at each end of the stator core, from which the gas passes through a cooling arrangement to a blower 69 mounted on the machine shaft. There are two coolers 100, Fig. 4 (which is a section on line A-A) and associated cooler inlet and outlet ducts A, B, the coolers and ducts extending along the full length of the machine. The inlet ducts A communicate with the hot gas collection chambers 29, 29A and the outlet ducts B with an annular cool gas collection chamber 23 on the low pressure side of the blower 69. Cooling the rotor.-Gas flows from the blower 69 into both ends of the rotor, reaching the right hand end of the rotor via passages 66, 67 bypassing a rotary seal 61, and reaching the left hand end of the rotor via pipes C (bottom of Fig. 4), an annular chamber 28 (Fig. 1A) at that end, and similar passages 66, 67. Within the rotor the gas flows axially (72) towards the centre of the machine, then radially (73, 74), then axially in both directions and finally radially outward (75, 76) into the stator/rotor gap 79. The gas may pass through hollow conductors, sub-slots, slots at the sides of the conductors or ducts between conductors. Cooling the stator.-Gas flows from the blower 69 via an annular chamber 27 to a duct (top of Fig. 4) which extends to the end of the stator core. From the duct C the gas passes between baffles as 32A, 32F, to the periphery of the stator core, and thence into radial duets 85 which are blocked at their inner ends, in both directions along axial ducts 87, and finally through further radial ducts 84, blocked at their outer ends, into the stator/rotor gap 79. The stator windings are liquid cooled by a separate cooling arrangement.
Patent GB-1325682-A (GB)
Title: Elevator apparatus
IPC: B65G17/12
Filed: 1970-10-29
Abstract: 1325682 Endless chain elevators GEORGE ROBSON & CO (CONVEYORS) Ltd 29 Oct 1970 [29 July 1969] 38109/69 Heading B8A Elevator apparatus comprises endless chain runs 128, 130 (Figs. 5 and 6), spaced one at each side of an elevator shaft and interconnected in a manner ensuring simultaneous movement of the runs at a common rate and in the same direction, at least one load-carrying platform 132 pivotally connected at one end to one of the chain runs, means 138 whereby the other end of the platform can be supported by the other chain run within the shaft, and means 148, 150, whereby movement of the platform beyond the limit of its movement in at least one direction within the shaft effects disconnection of the platform from the other chain run and a return movement of the platform connected only to said one of the chain runs. As shown, the means 148, 150, consists of cam tracks 148, 150. These engage followers 140, each carried by a respective extension of each platform 132. At the bottom of the shaft (Fig. 7), a suitable bend of the ends of the tracks 148, 150, operates in conjunction with a cam track 156. The latter engages a roller 154 carried by each platform. In a modification (Fig. 2), at the bottom of the shaft, each platform is successively engaged by the roller 46 on an arm 48 operated in timed sequence by a fluid operated cylinder 52. Each platform 132 may be formed with rails 134, 134, to enable a wheeled load to be run on to, and off from, the platform. Each chain run is driven by a respective motor 122, 124. These are connected to themselves and to the chains by gear-boxes 116, 118.
Patent GB-1333765-A (GB)
Title: Colouration process
IPC: D06P1/92
Filed: 1971-11-10
Abstract: 1333765 Dyeing synthetic fibres with AQ dyes IMPERIAL CHEMICAL INDUSTRIES Ltd 10 Nov 1971 [8 Dec 1970] 58275/70 Heading D1B [Also in Division C4] Synthetic textile materials e.g. cellulose triacetate, polyamides and aromatic polyesters are dyed with a solution or dispersion of an anthraquinone dye free of sulphonic acid groups and which has the. formula: A - (NH - B -OH) n  wherein B is an alkylene radical of 2 to 6 carbon atoms which may be substituted by chlorine, bromine or hydroxy group or B is an optionally substituted phenylene radical, n is 1, 2, 3 or 4 each of the -NH-B-OH groups being in the α position of the anthraquinone nucleus which may be optionally substituted, in a halogenated hydrocarbon and in the presence of 0.2% to 5% of water by volume of the halogenated hydrocarbon at a temperature above the boiling point of the azeotrope and at a pressure above atmospheric pressure. The preferred halogen hydrocarbons being perchloroethylene, chloroform, carbon tetrachloride, dibromoethylene, trichloroethylene, 111-trichloroethane, 1,1,2-trichloro-1,2,2- trifluoroethane, preferably 0.2 to 5% by volume of water being present, emulsifying and deflocculating agents being used.
Patent GB-1334048-A (GB)
Title: Image analysis
IPC: H04N5/217
Filed: 1969-11-12
Abstract: 1334048 Television shading correction MELDRETH ELECTRONICS Ltd 6 Nov 1970 [12 Nov 1969] 9652/73 Divided out of 1334044 Heading H4F  The subject matter of this Specification is identical with that in Specification 1,334,044, but the claims are concerned with a method of deriving a correction signal in binary digital form for compensating for shading at each of a plurality of selected points in the scanned region of a source of video signal and inserting the binary digital signals into a multi-location store. The method claimed comprises subjecting the scanned region to uniform illumination, scanning the region a first time and applying a first level of correction to the video signal amplitude, comparing the corrected amplitude at the selected points with a reference voltage, generating one of two binary signals if the corrected amplitude exceeds the reference voltage and the other binary signal if the corrected amplitude is below the reference voltage, inserting the generated binary signal into a store location corresponding to each selected point and during each of (n - 1) successive scans applying in turn each of (n-1) different levels of correction to the video signal amplitude and inserting the appropriate binary signal from each comparison into the store locations corresponding to the selected points thereby to build up a parallel binary word of n bits at each store location describing the level of correction required to the video signal amplitude at each selected point. These stored correction signals are read from the store and used to correct subsequent video output signals in the manner described in the parent Specification.
Patent GB-1335388-A (GB)
Title: Colourimeter
IPC: G01N21/25
Filed: 1970-07-30
Abstract: 1335388 Colour meter J E F HOLLEY 22 Oct 1971 [30 July 1970] 36939/70 Heading G2J [Also in Division G1] In a colour meter for use in schools &c., comprising a closed cabinet 1 having a top panel 6, the top panel is apertured so that a support plate 16 (carrying a test tube holder 29, Fig. 2, a lamp 31, a pivotally mounted apertured shutter 32 a colour filter 39 and a printed circuit board 35 with a photo-cell 37) is able to rest on a top panel with a test tube holder 29 &c. projecting through the aperture. The support is itself apertured Fig. 3A (not shown) to enable the changing of the filter, removal of the test tube, and the movement of the shutter 32 which has a tadpole shaped aperture. A circuit of the photo-cell and its associated ammeter 10 is disclosed.
Patent GB-1339445-A (GB)
Title: Production of laminar articles
IPC: B29C45/16
Filed: 1970-11-30
Abstract: 1339445 Injection moulding IMPERIAL CHEMICAL INDUSTRIES Ltd 22 Nov 1971 [30 Nov 1970] 48712/71 Heading B5A In a process for producing articles having a skin of plastics material enclosing a core of dissimilar plastics material, the total amount of skin material injected into the mould cavity during an injection cycle is in an excess of that required in the moulded article, an amount of skin material equal to the excess thus being forced out of the mould cavity through one or more of the sprue channels through which only skin material was injected during the extension of the skin material within the cavity. Skin material may be injected through one sprue channel and core material through one or more other sprue channels. Additional skin material may then be injected through the same sprue channel(s) as the core material, e.g. to reduce surface exposure of core material at sprue areas or through yet another sprue channel. Moulds having two sprue channels are described in this Specification (Figs. 1-5) and in Specification 1,339,443 and moulds having three and five sprue channels are described in Specification 1,339,444. The injection of skin material may continue during or after core injection. Excess skin material may be expelled by the injection of the core material or by the subsequent foaming thereof. The excess skin material may be expelled before the cavity is full and, where the skin material is injected through more than one channel, may be expelled before or during injection of core material. Where skin material follows core material through the same sprue channel or where core material follows skin material through one or more channels, or where skin material is injected through more than one channel at no one time need there be an excess of skin material actually in the mould since a given volume of skin material already present may be displaced by the same volume of skin material which is subsequently injected. Some core material may be expelled with the excess of skin material. The excess material may be returned to its original injection chamber or diverted via a multi-way tap into another receptacle. The expulsion may be assisted by the suction provided by the retracting injection ram or screw or by a plunger in the receptacle. To permit a foamed core either less than a filling amount of material may be injected or the mould may be enlarged after injection and/or the excess skin material allowed to escape. The mould may be enlarged either by retraction of a mould member by an external force or by reducing the clamping pressure in a vertical flash mould. The excess skin material may be expelled during or after any mould enlargement. Examples of plastics materials, articles produced and the various combinations of skin and core materials are as disclosed in Specification 1,339,443.